With worldwide album sales in excess of 15 million units, Justin Bieber has dominated pop culture and social media for more than two years. He has over 46 million Facebook fans, more than 29 million Twitter followers, and over 3.4 billion YouTube views – he is far and away the most popular YouTube artist of all time, and received the 2012 Billboard Music Award for Social Artist of the Year.

Bieber's brand-new studio album BELIEVE recently debuted at #1 in over 30 countries. The CD follows the #1 Christmas album, Under The Mistletoe, which was his third #1 Soundscan debut in just 18 months, making him the first solo artist in Billboard history to chart three #1 albums before his 18th birthday (on March 1st). Prior to Under The Mistletoe, My World 2.0 entered Soundscan at #1 in 2010 (containing "Baby," ranked the #1 most viewed YouTube video, currently over 791 million views); and Never Say Never: The Remixes entered at #1 in 2011, the soundtrack to the highest domestic-grossing concert film in U.S. history.

Bieber is a big supporter of Pencils of Promise, which works to build schools and increase educational opportunities in the developing world. $1.00 from each ticket sold for his current headlining North American "Believe" tour will be donated to Pencils of Promise, with the goal of building 15 schools around the world for needy children.

With her striking beauty and sincere talent, Golden Globe nominated actress, Emma Stone is claiming her role as one of Hollywood's most sought out actresses. Stone can soon be seen opposite Ryan Gosling and Sean Penn in Warner Bros., Gangster Squad (January 2013). Additionally, Stone lent her voice to the DreamWorks Animation comedy The Croods (March 2013), along with Ryan Reynolds and Nicholas Cage. Recently seen in Columbia Pictures' smash hit, The Amazing Spider-Man, Stone will soon reprise her role as 'Gwen Stacy' in the second installment of the franchise feature. Stone recently signed on to exec-produce and star in GK Films' Little White Corvette. This marks Stone's first role as a producer.

Stone's additional film credits include Easy A, which earned her a Golden Globe nomination and an MTV Movie Award for "Best Comedic Performance," the award winning drama The Help, the romantic comedy Crazy, Stupid, Love, Screen Gems Friends with Benefits, the independent drama Paperman, the Twentieth Century Fox animated comedy Marmaduke, Columbia Picture's hit comedy Zombieland, the Warner Brothers romantic comedy Ghosts of Girlfriends Past, the Columbia Pictures/Happy Madison hit comedy The House Bunny, Twentieth Century Fox's The Rocker, and the Judd Apatow comedy Superbad.

When she's not filming, Stone, is an advocate for Stand Up To Cancer (SU2C), a groundbreaking initiative created to accelerate innovative cancer research that will get new therapies to patients quickly and save lives now. Laura Ziskin, the late producer of The Amazing Spider-Man, started the organization and got Stone involved. In addition to SU2C, Stone recently became an ambassador for Gilda's Club New York City. Named after the late comedian and original cast member of SNL, Gilda Radner, Gilda's Club offers a place where people dealing with cancer can join together to build social and emotional support. Stone has become an active member in the Gilda's Club community and continues to do so by engaging with their younger departments for children and teens.

Tyra Banks has broken down barriers to become a highly influential figure in media today. At age 17, she was the first model to book 25 runway shows in her first season in Paris. She later became the first African American model to grace the covers of Sports Illustrated and Victoria's Secret and the first female model on the cover of GQ. She established Bankable in 2003, a multi-faceted media and lifestyle company where beauty meets entertainment. She became a pioneer in reality TV as the creator and executive producer of the globally-successful "Next Top Model" franchise and serves as host of "America's Next Top Model", which is viewed in more than 170 markets and has 22 international editions. In 2005, Banks became the first woman seen simultaneously on primetime and daytime with the launch of her own talk show as host and executive producer of the two-time Emmy Award-winning, The Tyra Show. She has been honored on "Time's 100 Most Influential People In The World" list twice. In September 2011, Banks released her first young adult fantasy adventure novel Modelland, which became a New York Times Bestseller. In 2012, she relaunched her company as The Tyra Banks Company.

Banks has partnered with the Lower Eastside Girls Club (LESGC) to create The Tyra Banks TZONE at the Lower Eastside Girls Club. She first established the TZONE in 1999 as a weeklong overnight camp experience for girls outside Los Angeles. TZONE will now have a brick and mortar presence as part of the first permanent home of the Lower Eastside Girls Club on Avenue D in New York City. The Lower Eastside Girls Club will soon open its new 30,000 square foot state-of-the-art sustainable Center for Community. Upon becoming members, the first program stop for each girl will be The Tyra Banks TZONE, which is housed within the newly constructed Girls Club. Through a rich mix of career development workshops, mentoring, experiential learning opportunities, financial literacy initiatives and community-wide events, hundreds of girls will build self-esteem and develop the tools they need to prepare for lives as entrepreneurs and change-makers in the world. Programs will be developed around the specific needs of girls in three age groups, ages 8-11, ages 12-15 and ages 16-18.

A dynamic and versatile actor, Josh Duhamel is one of Hollywood's leading males.? He recently began production on the drama You're Not You, alongside Hilary Swank and Emmy Rossum. In Feb. 2013, Duhamel will star opposite Julianne Hough in Lasse Hallstrom's Safe Haven, a drama based on the best-selling novel by Nicholas Sparks, and the thriller Scenic Route, which tells the story of two friends stranded in the desert. Also next year, Duhamel will be seen in the star-studded, ensemble comedy Movie 43 alongside Emma Stone, Hugh Jackman, Halle Berry, Kate Winslet, Richard Gere among many others. Co-directed by Peter Farrelly and Patrik Forsberg, the film features various intertwining, raunchy tales and will be released in Jan. 2013.

Duhamel was most recently seen in Garry Marshall's New Year's Eve and Michael Bay's Transformers: Dark of the Moon, where he reprised his role of Captain William Lennox for the third installment of the franchise. Additional film credits include the romantic comedy Life as We Know It, Ramona and Beezus, When in Rome and The Romantics. On television, Josh is best known for his role as Danny McCoy on the NBC crime drama Las Vegas. Additionally, he lent his voice to Nickelodeon's Emmy Award-winning animated series Fanboy & Chum Chum and starred in several seasons of the long-running ABC soap opera All My Children, in which he received three consecutive Daytime Emmy nominations.

Duhamel is actively involved in helping and leading his community. He partnered with the Minot Area Community Foundation to help restore and rebuild his home town of Minot, North Dakota, after a flood left the town devastated in 2011. With the foundation, he put on a charity concert to help the 12,000 people who were affected by the flood. Duhamel is involved with other charitable projects, including The Trevor Project and Red Cross, and participated in the Red Cross run benefiting the Japan Disaster Fund. In January 2012, he joined forces with Red Cross of Santa Monica to host a fundraiser youth run for relief effort following the earthquake in Haiti. Recently, Duhamel has campaigned with PetSmart charities to launch "The High-Five Pet Adoption," promoting adoption of pets from PetSmart Adoption Centers.

As one of the most widely known soccer players in the world, David Beckham has played for Manchester United, Real Madrid, and L.A. Galaxy, and has represented England, his home country, in numerous international cups. On top of his awards on the field, he was made an Officer of the British Empire in 2003 and was awarded the BBC Lifetime Achievement Award in 2010.

Ever since his days playing for Manchester, Beckham has been an active supporter of UNICEF, one of the leading children's rights organizations in the world. In 2005, he was appointed UNICEF Goodwill Ambassador, focusing on their Sports for Development program. Today, he continues to travel the world, raising awareness and supporting UNICEF's many campaigns.

Jessica Biel has made her mark on the entertainment industry with many blockbuster films including "The A-Team", "The Illusionist", "Valentine's Day" with the upcoming ensemble "New Year's Eve", the romantic comedy co-starring Gerard Butler "Playing the Field" and next summer's eagerly awaited blockbuster, "Total Recall" co-starring Collin Farrell. Biel initially started out in musical theater and at a very young age, starred in numerous productions such as Annie, The Sound of Music and Beauty and the Beast. When she's not on stage or in front of the camera, she has fun doing ballet, soccer, running, yoga and hiking with her dog, Tina.

Jessica Biel is also very passionate about supporting a variety of pro-social campaigns including her mission for Serving Those Who Serve and PETA. In 2010, Biel participated in "Summit on the Summit", where she climbed Tanzania's Mt. Kilimanjaro to raise awareness on the worldwide need for clean water. On the 19,000+ ft. climb, she sent pictures and tweets to spread the word of her campaign and inspire others to help bring fresh water to millions of people worldwide. Biel also works with Girl Up, a United Nations Foundation campaign that rallies girls in the U.S. to help give girls in developing countries a better future. Today, Biel continues to inspire people to become pro-social leaders in the global community. For more information on Summit on the Summit, click here.

Lady Gaga burst into the music scene with her first album The Fame(2008) which sold over 15 million copies worldwide. Her contributions to the music industry have garnered her numerous achievements including five Grammy Awards amongst twelve nominations, two Guinness World Records, a record setting thirteen MTV Video Music Award nominations and the estimated sale of 23 million albums and 64 million singles worldwide. Billboard named her both the "2010 Artist of the Year" and the top selling artist of 2010 ranking her as the 73rd Artist of the 2000s decade. Her third studio album, Born This Way, broke the iTunes record for the fastest rise to the #1 on release day. The singles from the album have sold a combined total of more than 7 million copies in the US alone. Gaga was named Forbes' Most Powerful Woman in the World 2011 and was included in Time's annual "The 2010 Time 100" list of the most influential people in the world.

With over 1.9 billion combined views of all her videos online, Lady Gaga is one of the biggest living people on Facebook with over 44 million 'likes' and is #1 on Twitter with over 14 million followers. Lady Gaga is the only artist in the digital era to top the 5 million sales mark with her first two hits. But chart-topping music and extravagant performances aren't the only callings of this trend-setting artist. Lady Gaga has been a prominent supporter of the LGBTQ rights movement. She has also been contributing her time to several charities, including raising money for homeless LGBTQ youth with(The Robin Hood Foundation), and donating a portion of the proceeds of her Country Road Version of "Born This Way" to (GLSEN): all to help end bullying against the LGBTQ community. She's also rallied her fans to help repeal "Don't Ask, Don't Tell" and most recently met with President Obama about passing anti-bullying legislation

Taylor Swift is a four-time GRAMMY winner, the reigning Entertainment Weekly and the Academy of Country Music Entertainer of the Year, and is Billboard's 2011 Woman of the Year and Top 200 Albums Artist. Her Speak Now album has sold more than 5 million copies worldwide and she is the biggest-selling albums artist in any genre of music over the past 12 months. Taylor, who writes all of her own songs, has career record sales now in excess of 20 million albums and 40 million song downloads. Her 6x-Platinum Fearless album was 2009's top-selling CD, and she was the top-selling artist of 2008.

Taylor is on tour in support of SPEAK NOW, and is currently slated to play 98 shows in 17 countries in 2011, with the tour continuing in Australia and New Zealand in 2012. Earlier this year, she took the unprecedented step of opening the tour's final dress rehearsal to the public as a fund-raiser for tornado victims in the Southeast, with the "Speak Now … Help Now" benefit raising over $750,000.

Mariah Carey is the best-selling female artist of all time. Her eighteen #1 singles rival all but the Beatles, and her five-octave range is legendary. She's won five Grammys, nine American Music Awards, Billboard's "Artist of the Decade" Award, and the World Music Award for "World's Best-Selling Female Artist of the Millenium."

But now, she's thrilled about her chance to give out a HALO Award -- because Mariah has always striven to leave an imprint on the world at large, not just on the musical canon. Through the years, she's donated her time and energy to causes like Save the Music, the Make-A-Wish Foundation, and the Fresh Air Fund -- with whom she founded Camp Mariah, a retreat for inner city children to explore future career paths. (Click here for more information about Camp Mariah and the Fresh Air Fund.)

Aside from her leading roles in movies like RENT, Seven Pounds, Sin City, and Percy Jackson, and most recently Unstoppable, Rosario is also active with organizations like The Lower East Side Girls Club, the Environmental Media Association, and Voto Latino (which she co-founded).

She's also an active board member of V-Day, an international movement that inspires and supports grassroots activists around the world who are trying to put a stop to violence against women and girls -- including rape, abuse, female genital mutilation, and sex slavery. (Click here for more information about V-Day.)According to the United Nations, one out of every three women worldwide are physically or sexually abused in their lifetime. Rosario travels worldwide on behalf of the organization.

As a member of The Fugees and in his solo career, Wyclef has churned out hit after hit and collaborated with everyone from L'il Wayne to Cyndi Lauper. But having moved to the United States from Haiti when he was 9, he has always felt the tug to help his troubled home country in whatever ways he could.

In 2005 he founded Yéle Haiti, a grassroots movement to inspire change in Haiti through programs in education, sports, the arts, and the environment, as well as emergency relief and food distribution. But when a catastrophic earthquake decimated an already struggling Haiti in January 2010, the organization shifted its whole focus to relief and reconstruction. According to Wyclef, "the objective of Yéle Haiti is to restore pride and a reason to hope, and for the whole country to regain the deep spirit and force that is part of our heritage." (Click here for more information about Yéle Haiti.)

One of the most recognizable faces in Hollywood, Ashton has parlayed the success he first found as lovable goof Kelso on That '70s Show into an empire -- starring in such films as The Butterfly Effect, The Guardian, What Happens in Vegas, A Lot Like Love, Valentine's Day, and Dude Where's My Car, not to mention executive producing hit TV shows like Punk'd and Beauty and the Geek.

But among the accomplishments Ashton's most proud of is the founding of the Demi and Ashton Foundation, dedicated to ending child slavery worldwide. (Click here for more information about the Demi and Ashton Foundation.)More people are slaves today than ever before -- men, women and children the world over are enslaved for sex, pornography, forced labor and indentured servitude. The DNA Foundation is fighting this worldwide scourge by empowering and training former victims as outreach workers, developing awareness campaigns, working with the Department of Homeland Security and the United Nations Office on Drugs and Crime to support their anti-human-trafficking efforts, and working with the largest tech and internet firms to develop solutions that interfere with predators using technology to enable their crimes.